WO2008040366A1 - procédé d'entrée et dispositifs informatiques de coordonnées polaires - Google Patents

procédé d'entrée et dispositifs informatiques de coordonnées polaires Download PDF

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Publication number
WO2008040366A1
WO2008040366A1 PCT/EG2006/000042 EG2006000042W WO2008040366A1 WO 2008040366 A1 WO2008040366 A1 WO 2008040366A1 EG 2006000042 W EG2006000042 W EG 2006000042W WO 2008040366 A1 WO2008040366 A1 WO 2008040366A1
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WIPO (PCT)
Prior art keywords
polar
mouse
input
computer system
computer
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PCT/EG2006/000042
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English (en)
Inventor
Cherif Atia Algreatly
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Cherif Atia Algreatly
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Priority to PCT/EG2006/000042 priority Critical patent/WO2008040366A1/fr
Publication of WO2008040366A1 publication Critical patent/WO2008040366A1/fr

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03543—Mice or pucks
    • G06F3/03544—Mice or pucks having dual sensing arrangement, e.g. two balls or two coils used to track rotation of the pointing device

Definitions

  • the present invention relates to an input method and device for a computer system. More specifically, the present invention relates to an input method and device for providing position information to a computer system based on the polar coordinates system.
  • the traditional computer input devices such as mice, touch-sensitive pads, pointing sticks, or joysticks are configured in a traditional manner that provides immediate input for a computer system based on the Cartesian coordinates system.!
  • the user of the computer moves his/her hand (such as in the case of using a mouse or a joystick), or moves his/her fingers (as in the case of using a touch-sensitive pad or a pointing stick), to manipulate the cursor on the computer's display to move in the x-y plane.
  • there is no accurate, logical control of the exact angle of movement of the cursor on the computer display in order to move the cursor to a targeted position on the computer display, the cursor is moved in multiple, discrete steps until it reaches its target.
  • the polar coordinates system is used instead of the Cartesian coordinate system to solve these previously mentioned problems, giving the computer user a simple, logical method and easy-to-use input devices that have several usability advantages over traditional input methods and devices.
  • a point (P) is represented by a tuple of two components (x) and (y).
  • (x) is the distance between the point (P) and the origin projected onto the x-axis
  • (y) is the distance between the point (P) and the origin projected onto the y-axis.
  • the input device used provides immediate input for (x) and (y) to the computer system.
  • the movement of the mouse's ball is translated into (x) and (y) inputs through two scroll wheels as known in the art.
  • the user looks at the cursor's starting and targeted positions on the computer display, he or she has an innate sense of the magnitude of the movement(s) along the x- and y-axis that is/are needed to reach the target; if this distance is small, the user moves the cursor in one step . to reach the target.
  • the user moves the cursor in more than one step until he or she reaches the targeted position.
  • the user, the input device, and the computer system communicate with each other using the two components (x) and (y) of the Cartesian coordinates system.
  • a point (P) is represented by a tuple of two components ( ⁇ ) and (f), where ( ⁇ ) is the angle between the positive x-axis on the Cartesian coordinates plane and a line from the origin to the point (P), and (r) is the distance between the point (P) and the origin.
  • the present invention utilizes the polar coordinates system instead of the Cartesian coordinates system in moving the cursor of the computer display, whereas the ( ⁇ ) and (r) components of the polar coordinate system replace the (x) and (y) components of the Cartesian coordinates system. Accordingly, to move a cursor from a start position
  • the user needs to determine the angle of the cursor movement ( ⁇ ) which is the angle of the line that connects between the start position and targeted position, and the positive x-axis on the Cartesian coordinates plane. Following that, the user needs to move the cursor on the s determined angle or direction until he or she reaches the targeted position.
  • ⁇ the angle of the cursor movement
  • the 10 computer cursor is called a "Polar Cursor" and its shape differs from the traditional shape of the computer cursor which is used with the Cartesian coordinates system.
  • the polar cursor is comprised of a circular portion 201 that gives the feeling of the ( ⁇ ) value, a dotted line 202 which serves as a ray reaching all possible target points of the cursor direction on the computer display, and a solid line 203 that represents the
  • a polar cursor To move a polar cursor from a starting position to a targeted position, the user needs to rotate the dotted line 202 of the polar cursor to intersect with the target position; such targeted position could be an icon, menu, or any specific point on the computer
  • FIG. 3 shows five consecutive movements A, B, C, D, and E of a polar cursor on a computer display using the polar coordinate system; in this figure it is obvious that controlling the exact angle of the polar cursor movement enables the user to move the polar cursor in lines, and, accordingly, the successive movements of the polar
  • 25 cursor can form or draw any geometrical shape that consists of a plurality of lines.
  • the difference between manipulating the computer cursor using the Cartesian coordinates system and the polar coordinates system is that in the former, the i cursor is moved relative to the (x) and (y) coordinates until it reaches its target, while in the polar coordinates system, the polar cursor doesn't move until it is clear for the user
  • the cursor • is moved to achieve the right movement distances for (x) and (y) together in tandem, whereas in the polar coordinate system, the polar cursor is moved to first obtain the right angle ( ⁇ ), then second, the right distance (r).
  • This imaginary line is the direction that we walk on until we reach the targeted position.
  • rotating our head is emulated by rotating the dotted line 202 of the polar cursor, while the imaginary drawn line that we walk on is the dotted line itself which identifies the direction to the targeted position, and our walking on the imaginary line is the solid line which protracts
  • the input of the present technique provides the two inputs or values of ( ⁇ ) and (r) subsequently one after the other, where each of the two values can be represented linearly in one dimension, accordingly it is possible to substitute the traditional 2D mouse
  • This linear strip 5 can easily be held in one's hand, or even be attached to any available linear space or object; such an innovation facilitates the use of the pads anywhere.
  • ⁇ position information to a computer system is giving the user a number of input device alternatives that enable the user to choose the suitable one for his or her task or circumstances; some of these input devices are:
  • This mouse looks like a traditional mouse and can be a mechanical mouse which houses a rotated ball, or optical mouse which houses an optical sensor, or any other type of mice, whereas it provides an immediate input for the two components ( ⁇ ) and (r) consecutively, one after the other, to a computer system.
  • the first step for the user is to input the value of ( ⁇ ) by moving the mouse a few millimeters in a specific direction and, 40 accordingly, the dotted line 202 is manipulated to the same movement direction on the i computer screen. If the first mouse movement is not accurate enough to align the dotted i line to the exact direction, then the user moves the mouse again a few millimeters to adjust the dotted line 202 direction.
  • the computer system considers the mouse movement as an input for the angle of the 45 dotted line ( ⁇ ).
  • the user moves the mouse in the direction or close to the direction of the dotted line 202 to provide immediate input for (r).
  • the solid line 203 protracts from the origin or the start position 200 to the targeted position 204. If the user protracts the solid line more than needed, meaning passing the targeted position, the user then will retract the i solid line by moving the mouse in the opposite direction or close to the opposite direction of the dotted line 202.
  • the computer system distinguishes between the mouse's movement input of ( ⁇ ) and (V) by measuring the polar mouse movement distance. If this movement distance is a few millimeters (assumed to be less than 3 millimeters), then the input is considered as an input for ( ⁇ ), and if this movement distance is equal to or more than the few millimeters i (equal to or greater than 3 millimeters), then the input is considered as input for (r). 0 When the user reaches the targeted position then he or she clicks on the left bottom of the t mouse to "enter" his or her polar cursor position.
  • Fig. 4 shows three movement steps for a polar mouse on a mouse pad.
  • the first movement from point 1 to point 2 is a polar mouse movement less than 3 millimeters, accordingly, it is considered to be an input for ( ⁇ ). While this movement was not 5 accurate enough to make the dotted line overlap with its targeted position on the computer display, accordingly, the user moved the polar mouse a second small movement from point 2 to point 3 for less than 3 millimeters to adjust the direction of the dotted line which achieved the user's goal and made the dotted line overlap with the targeted position on the computer display.
  • the third movement is to protract the solid line to0 provide input for (r) to the computer system, accordingly, the user moved the mouse on the mouse pad more than 3 millimeters from point 3 to point 4 until the solid line reached the targeted position on the computer display.
  • Fig. 5 shows the three polar cursor movements 501, 502, and 503 on the computer display where these three steps are associated respectively with the three polar mouse5 movements of Fig. 4 on the mouse pad, where point A represents the starting position of the polar cursor and point B represents the targeted position.
  • Fig. 6 shows another example for another three steps for a polar mouse on the mouse pad.
  • the first step from point 1 to point 2 is a small movement less than 3 millimeters, accordingly, it is considered to be an input for ( ⁇ ) where in this step the0 dotted line of the polar cursor reached its targeted position from the first time.
  • the second step from point 2 to point 4 is a polar mouse movement greater than 3 millimeters and, accordingly, it is considered to be an input for (r) whereas the solid line of the polar cursor protracted to reach its targeted position; however, this movement was bigger than the needed distance (r), so accordingly, the solid line passed the targeted position.
  • the user moved back the polar mouse from point 4 to point 3 in the opposite, or close to the opposite direction of the dotted line of the polar mouse to get back the solid line to intersect with targeted position.
  • Fig. 7 shows the three steps 701, 702, and 703 of the polar cursor movement on i the computer display where point A represents the starting position, and point B 0 represents the targeted position of the polar cursor.
  • point A represents the starting position
  • point B 0 represents the targeted position of the polar cursor.
  • these three steps are associated with the three mouse movement steps of Fig. 6 on the mouse pad.
  • Fig. 7 indicates two regions on the computer screen which are numbered 704 and 705, where region 704 defines the mouse movement directions that are considered to be in or close to the direction of the dotted line, and the region 705 defines the mouse5 movement directions that are considered to be in the opposite or close to the opposite direction of the dotted line.
  • the following mathematical relationships express the values of the two regions 704 and 705 accurately as follows: ( ⁇ + 90) > "region 704" > ( ⁇ - 90) ( ⁇ + 90) ⁇ "region 705" ⁇ ( ⁇ - 90)
  • the region 704 clarifies what is meant by saying "moving the polar mouse in or close to the direction of the dotted line” and the region 705 clarifies what is means by saying "moving the polar mouse in the opposite or close to the opposite direction of the dotted line”.
  • Another technique for the poly mouse is to consider its movement on the mouse pad in the direction or close to the direction of x-axis of the Cartesian coordinates plane as immediate input for ( ⁇ ) to the computer system, and to consider its movement on the mouse pad in the direction or close to the direction of y-axis of the Cartesian coordinates plane as immediate input for (r) to the computer system.
  • This technique eliminates the need to estimate the polar mouse movement to differentiate between the input of ( ⁇ ) and i (r) as in the previous technique.
  • One innovative design is to fix a horizontal scroll wheel on the left side of the mouse to be rotated by the user's thumb finger to provide immediate input for ( ⁇ ), where the top vertical scroll wheel of the mouse will be rotated to provide immediate input for (r) to the computer system.
  • This technique enables the user to move the polar cursor on the computer display without the need to move the polar mouse on a mouse pad of surface.
  • the Double Polar Mouse is to fix a horizontal scroll wheel on the left side of the mouse to be rotated by the user's thumb finger to provide immediate input for ( ⁇ ), where the top vertical scroll wheel of the mouse will be rotated to provide immediate input for (r) to the computer system.
  • This mouse can be a mechanical mouse, optical mouse, or any other type of mouse, with one main difference, which is having two rotated balls housed in the mechanical mouse, or two optical sensing holes in the optical mouse instead of one.
  • first rotated ball of the mechanical mouse and the first sensing hole of the optical mouse provide immediate input for ( ⁇ ) to the computer system
  • the second rotated ball of the mechanical mouse and the second sensing hole of the optical mouse provide immediate input for (r) to the computer system.
  • the bottom side of the mouse is divided into two parts, the first part which includes the first rotated or the first sensing hole is parallel to the mouse pad, while the second part, which includes the second rotated ball or the second sensing hole is sloped relative to the mouse pad, and only can be parallel to the mouse pad when the user presses lightly on the top side of the mouse.
  • This idea enables the user to provide both of the inputs for ( ⁇ ) or (r) according to his or her choice.
  • Fig. 8 illustrates the two cases of moving the double polar mouse where the first case A is when the user moves the double polar mouse naturally, as the same way he or she moves the traditional mouse (without pressing on the top side of the mouse) to provide immediate input for ( ⁇ ) to the computer system, and the second case B is when the user presses lightly on the top back side of the double polar mouse to provide immediate input for input (r) to the computer system.
  • the user of the double polar mouse does not need to move the mouse less than a few millimeters to input ( ⁇ ) as explained in the previous polar mouse, since the difference between the inputs of ( ⁇ ) or (r) are well-defined by moving different mouse parts.
  • each of the two values can be represented linearly by using linear touch-sensitive pads that look like a linear strip as shown in Fig. 9.
  • the user touches the linear touch-sensitive pad for the first time and moves his or her finger on it to provide immediate input for ( ⁇ ) to the computer system, then the user detaches his or her finger from the linear strip then touches it again for the second time to move his or her finger to provide immediate input for (r) to the computer system.
  • the computer system considers that action as one step — no matter how many moves happen.
  • moving the user's finger from left to right on the linear touch-sensitive pad provides immediate positive input values for ( ⁇ ) and (r) to the > computer system, wherein moving the user's finger from right to left provides immediate negative input for ( ⁇ ) and (r) to the computer system.
  • the linear touch-sensitive pad can take any other shapes as a circular strip or L- shape strip.
  • the advantage of having many different shapes gives a flexible usability that suits different users' needs or different applications as will be described subsequently. > The Polar Ring
  • Fig. 10 shows a polar ring which is a computer input device comprised of a first scroll wheel 1001 which can be rotated anti- or clockwise to provide immediate input for ( ⁇ ) to the computer system, a second scroll wheel 1002 which can be rotated anti- or clockwise to provide immediate input for (r) to the computer system, a first button 1003 which functions like a left-click button on a traditional mouse, a second button 1004 which functions like a right-click button on a traditional mouse, and a ring 1005 to house or hold the two scroll wheels 1001 and 1002, and the two buttons 1003 and 1004.
  • the user puts it on one of his or her digits and uses the thumb finger to rotate the two scroll wheels or to press the two buttons.
  • rotating them clockwise provides immediate positive input for ( ⁇ ) or (r) to the computer system, while rotating them anti-clockwise provides immediate negative input for ( ⁇ ) or (r) to the computer system.
  • the polar ring can be wireless to give its user a greater flexibility to move around the computer during operation.
  • the Horizontal Tilt Wheel As shown in Fig. 11, the horizontal tilt wheel comprised of a scroll wheel 1201 that can be rotated horizontally about its vertical axis or center, and also can be tilted vertically by pressing downward on any of its boundary points, a first button 1202 which' !
  • Rotating the horizontal tilt wheel clockwise provides immediate positive input for ( ⁇ ) to the computer system, and rotating it anti-clockwise provides immediate negative input for ( ⁇ ) to the computer system.
  • Tilting the horizontal wheel 1201 vertically downward from any point in the direction or close to the direction of the dotted line of the polar cursor provides immediate positive ' input for (r) to the computer system, and tilting it vertically downward from any point in the opposite direction or close to the opposite direction of the dotted line of the polar cursor provides immediate negative input for (r) to the computer system.
  • the horizontal tilt wheel can be fixed on the top side of the traditional mouse to enable using the polar coordinates system and the Cartesian coordinates system together with the same mouse. It is also possible to fix the horizontal tilt wheel on a ring where the user can put it on his or her pointing finger and use the thumb finger to operate it. It can also be placed on a computer keyboard to be accessible to the user's fingers during computer keyboard use. Overall, the small size of the horizontal tilt wheel and the ease of operating it facilitates its attachment to different objects and helps in utilizing it in different tasks or circumstances.
  • the polar cursor and the previously presented input devices need to input a third vector which is the angle : between the dotted line of the polar cursor and the positive z-axis which is the vertical
  • the polar coordinate system will 10 • be changed to the spherical. coordinate system and the polar cursor will be changed to what will be called a "Spherical Cursor" with its shape as shown in Fig. 12.
  • This spherical cursor comprised of a circular portion 1201 that gives the feeling of ( ⁇ ) value, a dotted line 1202 which serves as a ray reaching all possible target points of the cursor ; ; direction on the computer display, a solid line 1203 that represents the movement length 15 (r) of the cursor in its determined direction on the dotted line from the starting position 1200 to the targeted position 1204, and vertical circular portion 1205 that gives the feeling of ( ⁇ ), which is the angle between the dotted line 1202 and the z-axis which is the vertical line on the x-y Cartesian coordinates plane.
  • This third value needs to be provided by the previous present input devices in order to move the spherical cursor on the computer display in three dimensions.
  • the following description explains these modifications or additions to the present previous input devices:
  • 40 linear touch-sensitive pad can be used to provide immediate input for ( ⁇ ) to the computer: system. Moving the user's finger on the vertical strip 1302 from “down” to “up” provides
  • a vertical scroll wheel is fixed inside the horizontal scroll wheel as shown in Fig. 14.
  • This vertical scroll wheel 1402 has it axis perpendicular to the axis of the horizontal scroll wheel 1401, where the two axes are intersected at a point which is i the rotation center point of the horizontal and vertical scroll wheels.
  • rotating the vertical scroll wheel clockwise provides immediate positive input for ( ⁇ ), and rotating it anti-clockwise provides immediate negative input for ( ⁇ ) for the computer system.
  • Fig. 1 is the polar coordinates system where a point (P) is represented by a tuple of two components ( ⁇ ) and (r), where ( ⁇ ) is the angle between the positive x-axis on the Cartesian coordinates plane and a line from the origin to the point (P), and (r) is the distance between the point (P) and the origin.
  • ⁇ is the angle between the positive x-axis on the Cartesian coordinates plane and a line from the origin to the point (P)
  • (r) is the distance between the point (P) and the origin.
  • Fig. 2 is a polar cursor comprised of a circular portion 201 that gives the feeling of the ( ⁇ ) value, a dotted line 202 which serves as a ray reaching all possible target points of the cursor direction on the computer display, and a solid line 203 that represents the movement length (r) of the cursor in its determined direction (on the dotted line) from a start position 200 to a targeted position 204 on the computer display
  • Fig. 3 is five consecutive movements A, B, C, D, and E of a polar cursor on a computer display using the polar coordinate system >
  • Fig. 4 is three movements steps for a polar mouse on a mouse pad, the first movement from point 1 to point 2 , the second one is from point 2 to point 3, and the third one is from point 3 to point 4.
  • Fig. 5 is the three polar cursor movements 501, 502, and 503 on the computer display where these three steps are associated respectively with the three polar mouse movements of Fig. 4 on the mouse pad, where point A represents the start point of the polar cursor and point B represents the targeted point on the computer display.
  • Fig. 6 is another example for another three steps for a polar mouse on the mouse pad; whereas the first step is from point 1 to point 2, the second step is from point 2 to point 4, and the third step is from point 4 to point 3. >
  • Fig 7 is the three steps 701, 702, and 703 of the polar cursor movement on the computer display that are associated respectively with the three polar mouse movement of Fig. 6 on the mouse pad, where the point A represents the start point of the polar cursor and the point B represents the targeted point on the computer display.
  • Fig. 8 is a double polar mouse comprised of a mouse body 801devided into two parts, the first part includes a first rotated ball 802 or sensing hole 802, and the second part includes a second rotated ball 803 or sensing hole 803, whereas the second part has it bottom side sloped to the mouse pad 804.
  • Case A illustrates when the user moves the i double polar mouse naturally and case B illustrates when the user presses lightly on the ' top back side of the double polar mouse to provide immediate input for input (r) to the computer system.
  • Fig. 9 is a linear touch-sensitive pad that looks like a linear strip where the user moves his or her finger on it to provide immediate input for ( ⁇ ) and (r) to the computer system.
  • Fig. 10 is a polar ring which is a computer input device comprised of a first scroll wheel 1001 to provide immediate input for ( ⁇ ) to the computer system, a second scroll wheel 1002 to provide immediate input for (r) to the computer system, a first button 1003 which functions like a left-click button on a traditional mouse, a second button 1004 which functions like a right-click button on a traditional mouse, and a ring 1005 to house or hold the two scroll wheels 1001 and 1002, and the two buttons 1003 and 1004.
  • Fig. 10 is a polar ring which is a computer input device comprised of a first scroll wheel 1001 to provide immediate input for ( ⁇ ) to the computer system, a second scroll wheel 1002 to provide immediate input for (r) to the computer system, a first button 1003 which functions like a left-click button on a traditional mouse, a second button 1004 which functions like a right-click button on a traditional mouse, and a ring 1005 to house or hold the two scroll wheels 1001
  • 11 is a horizontal tilt wheel comprised of a scroll wheel 1101 that can be rotated horizontally about its center to provide immediate input for ( ⁇ ) to the computer • system, and also can be tilted vertically by pressing downward on any of its boundary points to provide immediate input for (f) to the computer system, a first button 1102 which functions like a left-click button on a traditional mouse, and a second button 1103 which functions as a right-click button on a traditional mouse.
  • Fig. 12 is a spherical cursor comprised of a circular portion 1201 that gives the « feeling of ( ⁇ ) value, a dotted line 1202 which serves as a ray reaching all possible target points of the cursor direction on the computer display, a solid line 1203 that represents "the movement length (r) of the cursor in its determined direction on the dotted line from the starting position 1200 to the targeted position 1204, and vertical circular portion 1205 that gives the feeling of ( ⁇ ), which is the angle between the dotted line 1202 and the z- ⁇ axis which is the vertical line on the x-y Cartesian plane.
  • Fig. 13 is a linear touch-sensitive pad in L-shape whereas the horizontal part 1301 • of the L-shape provides immediate input for ( ⁇ ) and (f) when the user's finger is moved on it, and the vertical part 1302 of the L-shape provides immediate input for ( ⁇ ) to the computer system when the user's finger is moved on it.
  • Fig. 14 is an input device to move the spherical cursor in three dimensions on the computer display
  • said input device comprised of a horizontal tilt wheel 1401 to provide immediate input for ( ⁇ ) and (r) to the computer system, a vertical scroll wheel 1402 to provide immediate positive input for ( ⁇ ) to the computer system, a first button 1203 to function like a left-click button on a traditional mouse, and a second button 1204 ⁇ to function as a right-click button on a traditional mouse.
  • the present input devices of the present invention are simple and straightforward and can utilize a number of existing technologies to easily and inexpensively achieve the polar coordinate system or the spherical coordinate system input.
  • the invention includes some main parts that are described in the following points: 1 1. Polar Mouse
  • the polar mouse is a traditional mechanical mouse that houses a rotated ball, or an optical mouse which houses an optical sensor, or any other mouse as known in the art.
  • the only difference is the mouse software that is used with the computer system which converts the (x) and (y) inputs of the mouse movement into corresponding inputs or values for ( ⁇ ) and (r) that is done through two steps.
  • the first ⁇ t step is to estimate the movement distance of the polar, mouse, where this movement distance is considered an input for ( ⁇ ) if its value is less than a small specific value (a) which is suggested to be 3 millimeters. If the movement distance is equal to or greater ithan (a), then the computer system will consider the polar mouse movement as input for (f).
  • This step can be expressed by the following logical statement:
  • the second step for the software of the computer system is to convert the input values of (x) and (y) into corresponding angle value for ( ⁇ ) and distance value of (r) using the following mathematical equations:
  • Double Polar Mouse 0 Technically the double polar mouse houses two rotated balls if it is a mechanical mouse type, and houses two optical sensing holes if it is an optical mouse type, where the two rotated balls and the two optical sensitive holes function in different periods of times based on the functionality of the double polar mouse as described previously. Accordingly the technical design of the double polar mouse will be as two mice in one5 but the output will be as one mouse since always one rotated ball or one sensing hole functioning on the time.
  • the polar ring utilizes two scroll wheels when it is used with the polar cursor and three scroll wheels when it is used with the spherical cursor; however, the scroll wheels5 can be carried out in a similar fashion to the regular mouse scroll wheels by using optical encoding disks including light holes, wherein infrared LED's shine through the disks and sensors gather light pulses and accordingly the scroll wheel rotation is detected.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Cette invention concerne un procédé d'entrée et des dispositifs pour communiquer des informations de positions à un système informatique sur la base du système de coordonnées polaires. Le procédé utilise un curseur polaire composé d'une partie circulaire (201) qui donne l'impression de la valeur (ϑ), une ligne pointillée (202) qui sert de rayon atteignant tous les points cibles possibles de la direction du curseur sur l'affichage informatique, et une ligne continue (203) qui représente la longueur de mouvement (r) du curseur dans sa direction déterminée sur la ligne pointillée d'une position de départ (200) à une position ciblée (204). Pour utiliser ledit curseur polaire, des dispositifs d'entrée différents sont introduits tels que des souris, des pavés tactiles, des roulettes inclinables et des bagues.
PCT/EG2006/000042 2006-10-04 2006-10-04 procédé d'entrée et dispositifs informatiques de coordonnées polaires WO2008040366A1 (fr)

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